Leyden Glen Reservoir Dredging Complete; Refill to Begin

The Greenfield Department of Public Works has completed the first full dredging of the City-owned Leyden Glen Reservoir in 34 years. Required surveying work was completed Wednesday and crews closed the gate valve Thursday, to allow the reservoir to be refilled and brought back online as a water source for the city.

“Now that we’ve removed organics that accumulate over time and reduce water capacity and require more treatment, the reservoir should be good to go for another 20 to 25 years,” said DPW Director Marlo Warner. “With the continuing drought, it has been a difficult time to have the reservoir offline. I want to thank everyone who has been conserving water. It has truly made a difference.”

Using sonar, it was estimated that 50,000 cubic yards of sediment had accumulated in the reservoir. Crews actually removed 10,000 cubic yards of material, saving $247,850 off the initial bid award of $532,850. The project was funded by the City’s Water Enterprise Fund. The work was performed by Maverick Construction Management Services.

The reservoir has a capacity of 44 million gallons and provides approximately a third of Greenfield’s drinking water and fire-protection capacity. Drawdown began May 16. Precipitation patterns will determine how long it takes for the reservoir to refill, but the process is expected to take at least two to three months.

The reservoir was last completely dredged in 1988. It was partially dredged when repairs were made to the dam in the late 1990s.

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